Analysis of task execution in a data visualisation interface and its influence on individual performance

This research paper presents an approach for the evaluation of data visualisation interfaces through the analysis of the TTF (Task Technology Fit) value, the user experience and the characteristics that have an influence during task execution. An experiment was carried out to analyse an interface for consulting energy data collected by monitoring systems in the home. The results show that the digital solution analysed does not offer the necessary fit to obtain satisfactory results in terms of individual performance, generating high execution times and error rates. The research confirms that the proposed method enables evaluation of data visualisation interfaces and shows the criticality of the mental load factor.